SR 167, or State Route 167, is a major highway in the state of Washington. It runs approximately 30 miles, connecting the cities of Renton and Auburn to Tacoma. This route serves as a vital corridor for commuters and freight traffic, facilitating access to key areas in the Puget Sound region. The highway features several interchanges and connects with other major routes, including Interstate 5 and Interstate 405. SR 167 is known for its express lanes, which help manage congestion during peak travel times. It plays an essential role in supporting the local economy and improving transportation efficiency.